Intel Pentium G7400: For what are two cores with HT (not) enough?

Video encoding

From the top, we gradually worked our way down to the class of the iconic Pentium. Its design is quite conservative by today’s standards. The performance of the dual-core processor is at the limit, which begins to complicate the actual execution of the tests. One of the biggest appeals is the low power draw, but that may not be worth much if your processor can’t handle your demands in real time. Or can it?

HandBrake

   

Test environment: For video conversion we’re using a 4K video LG Demo Snowboard with a 43,9 Mb/s bitrate. AVC (x264) and HEVC (x265) profiles are set for high quality and encoder profiles are “slow”. HandBrake version is 1.3.3 (2020061300).

x264 and x265 benchmarks




SVT-AV1

Test environment: We are encoding a short, publicly available sample park_joy_2160p50.y4m: uncompressed video 4096 × 2160 px, 8bit, 50 fps. Length is 500 frames with encoding quality set to 6 which makes the encoding still relatively slow. This test can make use of the AVX2 i AVX-512 instructions.

Version: SVT-AV1 Encoder Lib v0.8.7-61-g685afb2d via FFMpeg N-104429-g069f7831a2-20211026 (64bit)
Build from: https://github.com/BtbN/FFmpeg-Builds/releases
Command line: ffmpeg.exe -i “park_joy_2160p50.y4m” -c:v libsvtav1 -rc 0 -qp 55 -preset 6 -f null output.webm


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Comments (8) Add comment

        1. No. The results are certainly correct. Pentium’s video encoding performance is significantly slower than Core i3 Alder/Comet Lake. It has half the number of cores/threads and lower clock speeds.

              1. No, it looks like the it is done In software in that chart.
                If it has hw encoders and they are utilized, it will be faster than a Ryzen that
                lacks hw encoders and decoders.

                1. You’re right. I overlooked that Victor was asking about hardware encoding. This is still not supported by current processors for AV1. So yes, these tests capture the performance of software encoding.

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